Home / 28,501.58-42,761.01-20,197.66

Finding the Fourth Proportional to 28,501.58, 42,761.01 and 20,197.66

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Solution

The fourth proportional to 28,501.58, 42,761.01 and 20,197.66 is: 30,302.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,501.58 : 42,761.01 = 20,197.66 : x
  2. Step 2: Convert to fraction form
    28,501.58/42,761.01 = 20,197.66/x
  3. Step 3: Cross multiply
    28,501.58x = 42,761.01 × 20,197.66
  4. Step 4: Simplify right side
    28,501.58x = 863,672,341.24
  5. Step 5: Solve for x
    x = 863,672,341.24/28,501.58
  6. Step 6: Final answer
    x = 30,302.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.